4211449991 has 12 divisors (see below), whose sum is σ = 4902017328. Its totient is φ = 3607615872.

The previous prime is 4211449981. The next prime is 4211450003. The reversal of 4211449991 is 1999441124.

It is a de Polignac number, because none of the positive numbers 2^k-4211449991 is a prime.

It is a super-2 number, since 2×4211449991² = 35472622053387800162, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4211449951) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 57830 + ... + 108476.

It is an arithmetic number, because the mean of its divisors is an integer number (408501444).

Almost surely, 2^4211449991 is an apocalyptic number.

4211449991 is a deficient number, since it is larger than the sum of its proper divisors (690567337).

4211449991 is a wasteful number, since it uses less digits than its factorization.

4211449991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52358 (or 52351 counting only the distinct ones).

The product of its digits is 93312, while the sum is 44.

The square root of 4211449991 is about 64895.6854575094. The cubic root of 4211449991 is about 1614.8934858040.

The spelling of 4211449991 in words is "four billion, two hundred eleven million, four hundred forty-nine thousand, nine hundred ninety-one".